Peebles Originals Info, Projects & Fun!

Hiker's Radio Information

Welcome radio friends and hobbyists. This page is dedicated to a series of radios that were
featured in radio hobbyist magazines on several continents. In the mid thirties they appeared
in QST Magazine. The meaning of the Hiker's radios have changed over the years to include any tube receiver operated at low
plate voltages.

The original Hiker's sets used a #49 dual grid radio tube. This was not a screen grid tube or
a tetrode in the usual sense. Both grids were equal with one wound inside the other. Experimenters started building small
radios with extremely low plate voltage using the tubes in the space charge mode..

By biasing the inner grid a few volts positive and using the outer grid as the control
grid, a lot of electrons could reach the plate that were emitted by the filament.

These scans were from a now defunct website in New Zealand. They were saved so the
art of the Hiker's radio would be preserved. Download the scans and build your own
version of the Hiker's.